2012 Fiscal Year Final Research Report
the growing process of the vortex structure at the location close to the wall surface and Movement-Fluid-Structure Interaction Mechanism
| Project/Area Number |
22360080
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Fluid engineering
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
TANAKA Kazuhiro 九州工業大学, 情報工学研究院, 教授 (80171742)
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| Co-Investigator(Kenkyū-buntansha) |
FUCHIWAKI Masaki 九州工業大学, 情報工学研究院, 准教授 (60346864)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 流体計測 |
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| Research Abstract |
It is very important and interesting to study growing process of vortex structure on the wall surface of a body because the vortex structure affects the wake structure and flow force on the body in a direct fashion. Especially on a moving body with deforming wall surface such as a elastic airfoil, the precise study is needed. In this project, the growing process of the vortex structure at the location close to the wall surface of the moving elastic airfoil has been studied by flow visualization and PIV measurement as well as numerical studies. As a result, it is verified that dynamic thrust acting on elastic airfoils is much dependent on the Strouhal number based on heaving amplitude and frequency of the trailing edge. Moreover, the heaving elastic airfoils develop the vortex with the characteristics different from heaving rigid airfoils from the leading edge toward the trailing edge by wall deformation
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